A solid is in the form of cone mounted on a hemisphere in such a way that the centre of the base of the cone just coincide with the centre of the base of the hemisphere. Slant height of the cone is L and radius of the base of the cone is 1/2r where through r is the radius of the hemisphere. Prove that the surface area of the solid is pie/4 (11r+ 2L) r sq. units.
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p;luo
I want to solve a calculation in terms of pie, the total surface area of a cone of base diameter 12cm and height 10 cm
Plz sir help me in this question
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